Loading network utility...
Loading network utility...
Implicit TLS-encrypted Post Office Protocol v3 for secure single-client email downloads.
Verify whether Port 995 is open, closed, or filtered on your server or public IP address.
Port 995 provides secure email retrieval using POP3 over an encrypted TLS tunnel. It is the modern replacement for unencrypted POP3 (port 110), protecting account credentials and downloaded email payloads from interception.
Ensure the mail server enforces TLS 1.2+ and disables weak ciphers like RC4, 3DES, and SSLv3.
Technical answers and configuration advice for Port 995.
Deep-dive networking articles and protocol specifications related to this utility.
Learn how to check open TCP ports using terminal commands (Netcat, PowerShell, lsof) and free online port scanners. Verify firewall and open port security.
Comprehensive cheat sheet of standard TCP and UDP port numbers. Includes HTTP 80, HTTPS 443, SSH 22, DNS 53, RDP 3389, and database ports.
Learn how to test if a TCP port is open on remote servers and local firewalls using Windows Command Prompt, PowerShell Test-NetConnection, Netcat, and online tools.
High-speed, zero-cost engineering tools built for network diagnostics and developer workflows.
Detect IP, GeoIP, ISP, ASN & PTR
Reverse IP to PTR hostname & verify FCrDNS
Query A, AAAA, MX, TXT & NS records
Domain registrar & expiry info
Audit SPF, DKIM & DMARC records
Check global DNS record propagation across Anycast resolvers